CBS News poll: In debate, Democrats want more forceful Biden, GOP wants polite Trump; most want to hear about issues

In the debate Thursday, viewers mostly want to hear about Joe Biden and Donald Trump's plans for the country and their achievements as president, more than critiques of each other. 

Some will also be looking for whether or not these men have the mental and cognitive health to serve (a concern that voters have expressed to some degree about each of the candidates in previous polls). 

Voters generally agree on what they want the candidates to say, but views diverge on how they should say it. Democrats want Mr. Biden to take a more forceful tone, while Republicans want Trump to take a more polite one.